Undateable (2014)

Candace and Justin walk in on Danny as he prepares to have sex with a woman he just met. Candace engages the woman in conversation, which embarrasses Danny and causes the woman to walk out. Danny is furious with Candace, and tries to put Justin in the middle of their argument. Justin is about to side with Candace when Danny, for the first time, says Justin is his best friend. Conflicted, Justin retreats to his office, and can only be coaxed out with a Grease sing-along.